ContinentalTour 28 700x32-47 40mm Schrader Valve - 2 Pack w/Levers

The metal stem is great! And the valve nuts are a great addition as it makes inflation and de-flation easier as it keeps the stem from sinking.These have been inflated to 75 - 60 PSI for about two weeks or longer. No failures or mystery leaks. Recently swapped from 700x38c to 42c.

Super easy to install. It was my first time installing a tube, and it was easy. Seems to be of good quality and has retained the air so far. I recommend!

Great quality. So nice that it’s two tubes with two bike tire levers for tire removal. I had a leak while on vacation and they don’t carry this size at Walmart. Got it next day from Amazon.

There are way too many terrible plastic tubes coming out of Asia. I went with a name brand and am very happy I did so. They mounted well with the tires and are obviously well-made. That cannot be said for most of the cheap plastic ones on Amazon. They are holding up very well, have perfectly held air since they were mounted. Get these. Spend money where it counts on safety.

Bought the 2-pack, one as a spare.This was the highest quality non-import(no "Made in 'somewhere'" label.)Easy install, but no instructions on the new Schrader valve tightening rings. I even checked the Conti web site. I guessed they are external to the tire rim, below the plastic cap.Check the tube fit, then gave it a slight pressurization (+/- 5 lbs). Gave it a run on the floor(both tp insure tube is "set" correctly.Filled it to normal 62 lbs. BLEW AT 60. POW!!!Tube seperated at Schrader valve reinforcement.Oh Well, I bought two.Tried second one. POW!!! Blew slightly above 60 (rated to 75), Blew at exactly same area of tube.So much for Continental. As this was the only brand name I could find at Amazon, it's back to the local bike store Monday Morning.

Great tube from a world renowned company, but unfortunately the box was just a little bit large for my Topeak rear bag. Only so much room in it for my tools, lock, water bottle, gloves, glasses, etc. Need to keep in its box to protect it from an accidental puncture by other tools in the bag. Had to return it.

My wife’s pretty much brand-new e-bike had a flat tire. Turns out the tube was leaking from around the valve. So it was off to Amazon to buy two new replacement tubes — because if the front went bad, surely the rear would too? And even if not, I don’t see any point in taking a chance.Anyway, when I buy replacement tubes, my first choice is usually Continental. They use metal valves and I’ve never had one leak.

Good quality tubes